1st time in Beirut - travelling alone - next week

Next week (May 7th to May 14th) I will be visiting Lebanon and Beirut for the 1st time in my life.

It is a rather sudden/unexpected trip and I did not think I was going to be there on my own... but sometimes things change...

Would be super grateful if some fellow member of this great international community could give me some info & tips about what to do and see in Beirut. "Insider/local" tips preferably and "pocket-friendly" as I am travelling on a very tight budget.

Also if you can advice on any central, clean and safe hostel, that would be super too!

Last but not least if anyone living in Beirut, wants and has the time to meet up 1 day next week for a coffee - wonderful!